title: 6-[(4'-Ethoxycarbonyl-[1,1'-biphenyl]-4-yl)oxy]hexanoic acid.
abstract: In the title compound, C21H24O5, the dihedral angle between the benzene rings is 19.57 (15)°. In the crystal, the mol-ecular arrangement makes up head-to-head centrosymmetric dimers assembled by pairs of O-H⋯O bonds; this arrangement builds a graph-set ring motif of R (2) 2(8). The dimers are linked into a tape running along the b-axis direction through C-H⋯O inter-actions. The packing is further consolidated by C-H⋯π inter-actions, forming layers parallel to (10-2).
authors.affiliation: Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Puebla, Pue, Mexico.
authors.forename: Delia
authors.initials: D
authors.lastname: López-Velázquez
authors.forename: Angel
authors.initials: A
authors.lastname: Mendoza